Revolution: Its a gas!

Revolution mistakes:  Carbon Dioxide Gas?

Today’s mistake:

In the episode Kashmir, they attempt to sneak into Philadelphia via a subway tunnel.  They step on a landmine which causes the tunnel to collapse behind them.  Shortly thereafter, they start hallucinating.  This is explained as being due to the accumulation of carbon dioxide because the tunnel is now blocked.

There are all sorts of problems with this:

Hallucinations are not a symptom of carbon dioxide poisoning.

Their breathing and use of torches would not deplete the air for weeks

Moving faster would increase the symptoms

They would be dead long before the torches were noticeably affected.

 

Some rock formations produce natural carbon dioxide.  If the tunnel was being filled by this, the lower levels and pockets in the tunnel would be fatal at all times.  Carbon dioxide is heavier than air so it sinks. They would never have made it out of the water.

If carbon dioxide infiltration was a problem in this tunnel, the builders would have needed to build many venting shafts in the tunnel and sealed it from leaks.  They could not have relied on powered fans because they would have killed everyone in a train in the event of a power failure.

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